Skin Pathology

Question 1

Are the differentials for purpura in children?

Answer 1

Infections

• Meningococcal
• Other bacterial infections
• Virals - enteroviruses, ross river virus

Vasculitis
- Henoch-Schonlein purpura

Thrombocytopenia

• ITP
• Leukaemia
• Drug induced

Trauma
- NAI

Other

• Langerhans cell histiocytosis
• Glucocorticoid excess
• Scurvy

Question 2

What are the differentials for blistering lesions?

Answer 2

Infection

• HSV
• Varicella
• Bullous impetigo
• Staphylococcal

Trauma
- Burns

Contact dermatitis

Photosensitivity

• SLE
• Phytophotodermatitis
• Porphyria

Erythema multiforme, Steven-Johnson syndrome